Add driving settings for both SPI and SD/eMMC interfaces to support ensure flash devices is accessible for ram-booting.
Signed-off-by: Weijie Gao <[email protected]> --- arch/arm/dts/mt7988-rfb.dts | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/arch/arm/dts/mt7988-rfb.dts b/arch/arm/dts/mt7988-rfb.dts index 817fe400db8..2579d7099fb 100644 --- a/arch/arm/dts/mt7988-rfb.dts +++ b/arch/arm/dts/mt7988-rfb.dts @@ -101,6 +101,19 @@ function = "spi"; groups = "spi0", "spi0_wp_hold"; }; + + conf-pu { + pins = "SPI0_CSB", "SPI0_HOLD", "SPI0_WP"; + drive-strength = <MTK_DRIVE_8mA>; + bias-pull-up = <MTK_PUPD_SET_R1R0_11>; + }; + + conf-pd { + pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO"; + drive-strength = <MTK_DRIVE_8mA>; + bias-pull-down = <MTK_PUPD_SET_R1R0_11>; + }; + }; spi2_pins: spi2-pins { @@ -108,6 +121,18 @@ function = "spi"; groups = "spi2", "spi2_wp_hold"; }; + + conf-pu { + pins = "SPI2_CSB", "SPI2_HOLD", "SPI2_WP"; + drive-strength = <MTK_DRIVE_8mA>; + bias-pull-up = <MTK_PUPD_SET_R1R0_11>; + }; + + conf-pd { + pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO"; + drive-strength = <MTK_DRIVE_8mA>; + bias-pull-down = <MTK_PUPD_SET_R1R0_11>; + }; }; mmc0_pins_default: mmc0default { @@ -121,18 +146,25 @@ "EMMC_DATA_3", "EMMC_DATA_4", "EMMC_DATA_5", "EMMC_DATA_6", "EMMC_DATA_7", "EMMC_CMD"; input-enable; + drive-strength = <MTK_DRIVE_4mA>; + mediatek,pull-up-adv = <1>; /* pull-up 10K */ }; conf-clk { pins = "EMMC_CK"; + drive-strength = <MTK_DRIVE_6mA>; + mediatek,pull-down-adv = <2>; /* pull-down 50K */ }; conf-dsl { pins = "EMMC_DSL"; + mediatek,pull-down-adv = <2>; /* pull-down 50K */ }; conf-rst { pins = "EMMC_RSTB"; + drive-strength = <MTK_DRIVE_4mA>; + mediatek,pull-up-adv = <1>; /* pull-up 10K */ }; }; }; -- 2.34.1
